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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'eca67e5e1b1cbdf96152e46b351544a675f967e5ee5cb058f0a7c101acd992a1' 
  AND token = 'D6hE/18AKmbERBMXS+t5pY/UOqh9kAszK8/pFEN9WJk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}